Transmission-gearing.



J. H. JENSEN.

TRANSMISSION GBARING.

APPLIOATION FILED JULY 16, 19 2.

Patented Aug. 25, 1914.

PHO' 1. WASHINGTON. D

'I'HE NORRIS PETER I Original applicationfiled May 16,

. 7 Q JENs H. JENSEN; or .IVLINDEN, NEBRASKA.

i TRAiTSI/IISSION-GEABiNG.

incense.

To all avhom it may 50mm! 1 a Be it known that I, JENs H; JENSEN, of

" Minden, in the county ofKearney, in the 7 the accompanying drawings.

tate of new and useful Improvements in Transmission-Gearing, and have described the same in the following specification, illustrated by My invention relatesto transmission gearing ofthat class in which gearing members .are locked interchangeably for the production of different speeds. It is especiallydesigned to be usedin connection with self feeders and'band cutters forthresh'mg ma- .pelling" vehicles chincs, as illustrated in Letters Patent No. 1,033,901, which were issued to The July 30, 1912; but islikewise applicable to self-proand to other kinds of machinery requiring instantaneous changes of speed.

The principal objects of thexinvention are to simplify the construction ofagearingof this class, to render its speed changes instantaneous, to maintain the meshing of the.

gears without interruption, to avoid stripping the gears, and 1n general to produce a superior transmission gearing o fYthespecified class. a

To accomplish these objects I "incorporate in-my improved transmission gearing adriv: ing gear having twoconcentric courses of gear teeth, a driven gear of like description, a pinion shaft, loose pinions ing the gear courses respectively, and slid ing clutch members for locking the pinions to the pinion shaft.

The drawings show the best manner in which I have contemplated applying the principles of the invention; yet the latter is not restricted to any specific arrangement or construction of parts, excepting as limitations of that kind are either expressed or necessarily implied in the subjoined claims. Figure 1 is an elevation of a transmission gearing which is constructed in accordance with these principles. Fig. 2 is a horizontal section on the section line 0-02 in Fig. 1.

In the illustrative transmissionygearing which is exhibited in these drawings, the driving gear, driven by an engine or other motor, is denoted'by the numeral 3. Itis mounted to rotate upon aho-rizontal stud axle 2 projecting from the frame 1 and is provided with concentrlc courses ofbeveled gear teeth, 51and 6, and peripheral sprocket Nebraska, have invented certain;

46', working respectively in the :slots 22,.21,.58' and 5 9, withinthose blocks. The latter are provided with the terminal thereon engag-' p fi tio -e s t Patented Aug. 25, 1914. 1904;5613TfllN0- 208,232. Iiivided and thisapplication filed July 16, 1912 1 Serial No.709',626.

teeth 4. Thefdriven gear 38 "has'likewise two concentric courses, or rings, of beveled 'gearteeth, namely the course :39, equal in diameter to the course 5, and the course40 smaller in diameter than the course 6; The gear 38'is' keyed on the shaft 34, the latter being j ournaled in the bearing 35 secured to frame 1 either extended throughthe self'feeder and band cutter,-"as* in"the patent application which is'above identified, or attached operatively to other ki-ndsof machineryto which changeable speeds" are to be transmitted.

*The' pinionshaft *9. is journaled in the bracket-12 extended from the frame 1 and inthe boxbeai-ing11' which is fastened on .the free end of'the stud axle 2 by the setscrew 12-. The 'same is prevented from moving endwise by the. collars 13 and 14. On this shaft are looselyfplaced the several free beveledfpinions 7, 8, 41 and 42, meshing constantly with the several gear courses 6, 5,

and 4O respectively, and held up to their workingengagfment therewith by the stop pins 55, setthroughth'e shaft. The sliding clutcl1-blocks 17 18, 43 and 44, are keyed to-the sameshaft by the pins 24, 23, and longitudinal clutch teeth 20, 19, 46 and 45, which are adapted to engage selectively the terminal clutch teeth 15, 16, 57 and 56 formed on the pinions respectively. The clutch blocks 17 and 18 are either brought engagement with the pinions 8 and 7 respectively, or are disengaged from both of them, by means of a hand lever 28, which is fulcrumed on the pivot bolt 29 and is held in the requisite positions of adjustment .bythe clamp 32 operated by the thumbscrew 33 to engage the stationary locking bar 31. This lever is attached by the link 30 to the coupling yoke 27 which has terminal forks denoted by the same numeral and occupying alternatively into b'ythe bolts 36 and 37 andb eing the circumferential grooves 25 and 26 in the by the attached clamp 53, operated by the setscrew 54 to engage the same bar 31, and is attached by the link 52 to the yoke 49 havin the terminal forksoccu in the e ripheral grooves l7 and L8 in these blocks. According to the positions given to the lovers 28 and 50, therefore,the transmission of power from the driving gear 3 to-the drivenv gear 38 may be Wholly interrupted or may produce in the driven gear alternatively anyone of four different speeds as v may be desired, namely, the speed imparted thereto by eithervof the pinions 4L1 and 4:2 as driven-at the speed of either of the pinions 7 and 8. a

I claim as my invention- 1. A transmission gearing of the specified I class, comprising a driving gearmountedon stud; axle and having peripheral sprocket teethas Well as concentriccourses of beveled gear teeth, a drlven gear having concentric courses of beveled gear teeth, a shaft journaled in a box bearing on the free end of the stud axle, a plurality of free beveled. pinionsyrotatable on the -:shaft, and meshing constantly ith the courses of gear teeth respectively, a plurality of clutchblocks rotatable With the shaftv and slidable thereon to Copies of this patent may be obtained for courses "of ,-;bevel"gearteeth, a shaft journaled in a box bearing on the free end of the stud-axle, a: plurality of free beveled pinions'severally rotatable onthe shaft, and

meshing constantly With the courses of gear teeth respectively, a plurality of clutch 'blocks rotating constantly With the-shaft,

and slidable thereon, yokes for slidingthe clutch blocks in pairs into and out of engagement vviththeir respective'pinions, and means for operating the yokes independently of eachother.

3. A transmission gearing of the specified class,-comprising a driving gear mounted on a stud axle and having two concentric coursesof'beveled gearteeth, a driven gear having tWo concentric courses I of b'eveled gear teeth, a shaft journaled in a bearing, on the end ofthelstud axle, tWo pairs of beveled pinions rotatable severally on the shaft, and meshing constantly With the-teeth of the driving and the driven gears respec-' tively, two pairs of clutch ,blocks rotating constantly with the shaft and slidable there-f on, yokes for sliding the clutch blocks in 5'1: I

pairs into and out, of engagement Withtheir respective pini ons, pivoted levers linked to the yokes respectively, and means for look; ing the levers severally in alternativeposi- 1 g tions.

nature in the presence of two Witnesses.

Witnesses:

VAL JENSE E IN CURTIS.

five cents each, by addressing the Commissioner-of Batents, Washington, I). 0. j I

In testimony whereof I hereto set-my sig- I JENS Jansen. 

